Improvement in flour-bolts



M. G. UOGSWELL 82; W. H. FINN.

Flour-B0113.

No. 205,476. Patented July 2.1878.

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UNrrEnSrArEs PATENT Onrroa.

MORTIMER C. COGSWELL, OF BROOKLYN, AND WILLIAM H. FINN, OF OSWEGO, NEWYORK.

IMPROVEMENT IN FLOUR-BOLTS.

Specification forming part of Letters Patent No. 205,41 '76, dated July2, 1878; application filed February 4, 1878.

To all whom it may concern Be it known that we, MORTIMER C. COGS- WELL,of Brooklyn, Kings county, State of New York, and WILLIAM H. FINN, ofOswego, Oswego county, in said State, have jointly invented a new anduseful Improvement in Apparatus for Cleaning the Bottom Cloth in Flour-Bolts, of which the following is a specification, reference being had tothe accompanying drawing, formin g part of the same.

Our invention relates to an apparatus designed to keep the meshes of thecloth of bolts in flouring-mills open and clear in operation and itconsists of a brush placed in such relation to the belt that as thelatter revolves, its outer surface will be swept by the brush, the brushbeing actuated by the reel-head as it revolves, or by a similarly-shapedcam on the axial shaft of the bolt, receding from and approaching towardsuch axis, so that it will conform to the plane sides of the bolt andsweep the latter with a uniform contact throughout the entire revolutionof the bolt.

The drawing is a perspective view of an ordinary six-sided bolt, beingbolting-cloth stretched on six-armed reel, constructed to revolve withaxle in bearings within a suitable inclosure.

A is the bolt. B is a shaft arranged to rock in bearings over the bolt.(J is a brush attached to arms D D, fixed on the shaft B by means ofset-screws a a. E is an arm, also fixed on said shaft by the set-screwb. F is a rod arranged in the end of the arm E. A screw-thread is cut onthis rod, and also in the hole in the arm, through which it passes. Itis furnished with jam-nuts c 0, to fix it securely in place when set asdesired. The lower end rests on the rim G of the bolt A, the outer faceof said rim being made smooth, and preferably of iron, thus performingthe ofiice of a cam to actuate the brush.

d is a spiral spring, one end of which is fixed on the frame H and theother in the collar e, which is made fast to the shaft B by a setscrew.This spring is so arranged that its resiliency will tend to rock theshaft B in the direction to press the brush 0 down toward the bolt.

It is evident that by the construction and arrangement of the parts nowdescribed the said brush may be set so that the end of the bristles willbe in contact with the surface of the bolt with any desired degree ofpressure, and that as the bolt is revolved the brush will alternatelyrise and fall, and be kept in uniform relation to the surface of thebolt, so as to sweep the surface of the several plane sides with uniformcontact with them throughout the entire revolution of the bolt.

\Ve have above described what we regard as the best form andconstruction of our improvement; but we do not intend to limit our claimto the precise form and arrangement of the devices shown in the drawing.They are susceptible of various modifications without departing from theessence of our invention. For example, the brush might be made to moveto and from the bolt by having the ends of its backf arranged to slidein fixed ways, with arms secured to it, one at each end, extending downand resting upon the rims G G, and a spring or springs arranged in anysuitable way to press the brush toward the bolt.

It is evident, also, that in place of using the rims G G of the boltitself, similarly-shaped cams, separate from the bolt, may be placed onthe axle-shaft of the bolt, and employed to actuate the brush.

We are aware that a brush for cleaning the cloth in flour-bolts has beenused attached to swinging arms, and self-adjustable to the bolt by itsown weight.

Our claim is limited to the combination and arrangement of a brush witha bolt, which we have shown and described, wherein the brush is guidedand adjusted to the bolt throughout its entire revolution withoutresting by its weight upon it, with a spring acting to press the brushtoward the bolt. I

What we claim as our invention, and desire to secure by Letters Patent,is

1. The combination, with a flour-bolt, of the brush 0, a cam (one ormore) on the axleshaft of the bolt, corresponding in form to theperimeter of the bolt, and a spring arranged to press the brush towardthe bolt, all constructed to operate as and for the purpose described.

2. The combination of the bolt provided with the rims or cams G G, (oneor 1nore,) the swingd, with the adjustable collar 6, whereby the ingbrush 0, arm E, and screw shaft or bolt tension of said spring may bevaried, all as and F, made adjustable in said arm, whereby the for thepurpose described. brush is made adjustable to the bolt, all as de-MORTIMER G. COGSWELL. scribed. WILLIAM H. FINN.

3. The combinati on of the bolt provided with W'itnesses: the rims orcams G G, (one or more,) the swing- THEODORE G. Hos'rER, in g brush 0,the arm E, the shaft B, the spring J. P. FITCH.

